.toggle-button{
    -fx-padding:0;
    -fx-margin:0;
    -fx-border-radius: 0;
    -fx-background-radius: 0;
    -fx-border-insets: 0;
    -fx-background-insets: 0;
    -fx-background-color:#000;
    -fx-border-width: 0;
}
.toggle-button:selected{
    -fx-background-color: #FFF;
}